CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Programming & Development

lagrangian-intermediate-particle diameter and grid size?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   November 6, 2011, 20:57
Default lagrangian-intermediate-particle diameter and grid size?
  #1
New Member
 
Xinze
Join Date: Mar 2009
Location: Shenyang, China
Posts: 4
Rep Power: 7
Xinze is on a distinguished road
I wonder whether particle diamerter must smaller than grid size for colliding cloud or icoUncoupleParcelFoam. where restrict this things in the algorithm of OF implimenting.

thanks in advance!

xz
Xinze is offline   Reply With Quote

Old   November 15, 2011, 08:05
Default
  #2
New Member
 
Naveed Iqbal
Join Date: Oct 2009
Location: Germany
Posts: 17
Rep Power: 6
niqbal is on a distinguished road
Hi Xz,
To me it seems, there is not any limitation of grid size in the solver (icoUncoupleParcelFoam) as it is uncoupled, however this is not the case when you have coupling case. And the problem comes in the drag models, where in case you have particle size greater than the the cell size, it will create problems. Then you are supposed to go for resolved methods. Hope this might be of some help.
niqbal is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lagrangian Particle Tacking Nording OpenFOAM Programming & Development 1 May 30, 2010 08:03
grid size jay CD-adapco 6 September 5, 2008 05:00
grid size for DNS dirk Main CFD Forum 5 July 27, 2005 04:02
Multiphase models-grid size? Yvonne FLUENT 0 June 11, 2002 03:38


All times are GMT -4. The time now is 06:22.